Button or stud



I (No Model.) 0. E. NIGGEMAN.

BUTTON 0R STUD. No. 281,642.. .7 Patented July 17, 188.3.

- WITNESSES: 1 Y I Z%- I VENTOE= f ATTORNEYS.

UNIT STATES PATENT OFFICE.

' CHARLES H. NIGGEMAN, oE LEXINGTON, MICHIGAN.

, BUTTON OR STUD.

SPECIFICATION forming part of Letters Patent'No. 281,642, dated July 17,1883.

' Application filed April 5, 1883.- (No model.) E

-To all whom it may concern: I.

Be it known that I, OHARL s H. NIGGE- MAN, of Lexington, in the countyof Sanilac and State of Michigan, have invented certain new and usefulImprovements in Buttons,

Studs, and other like Fastenings, of which the description, which shallwork easier, be safer as regards accidental detachment, durable, cheap,simple, and easily repaired.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorsponding parts in all the figures.

Figure 1 represents a longitudinal view, upon an enlarged scale, of myimproved stud or button. Fig. 2 is a longitudinal section of the same onthe line a; m in Fig. 1. Fig. 3 is an inner face view of the separatedbase of the button with attached tube and spring, and Fig. 4 an innerface view of the separated head of the button with attached post or stemand catch. g

A in the drawings is the base of the stud or button, having a centraltube, b, mounted on its inner face, and aspiral or other spring, 0,secured at its one end to said face within the tube, the tension of saidspring being in direction of the length of the tube. Anoutwardlyprotruding hollow circular bead or groove, (1, is made in andaround said tube, near its outer end, and connecting with this circulargroove, and extending to the outer end of the tube, are oppositeoutwardly or laterally protruding grooves or grooved ways 6 6.Furthermore, said tube is constructed on opposite sides of its outer endportion, midway between the longitudinal grooves c e, with outside shortlongitudinal slots, f f, made to terminate at their inner ends in andcutting the circumferential hollow bead or groove d.

B is the separable top or head of the button. This head is provided onits inner face with a centrally-projecting post or stem, g, of asuitable length to enter down within the tube 12 and compress the spring0 therein, and I at a suitable distancein the length of said post areopposite side catches or projections, h h, which are here shown asformed by apin passing transversely through the post. These catches h hare of asize to freely enter the longitudinal grooves e e in the tube72.

To fit the two parts A B of the stud or button together, the post 9 ofthe head B is adjusted to bring its catches h h in line with or over thelongitudinal grooves e e of the tube b, and said post passed down withinsaid tube till the catches enterwithin or strike the bottom of thecircular groove d, compressing the spring 0 in the tube. The head B isthen turned the fourth of a circle, or thereabout, to bring its catchesh h in line with the slots f f in the tube, and pressure removed ,fromthe head B, when the spring 0, acting against the post g, forces outwardsaid-post till the catches h h are arrested by the outer ends of theslotsf f, and the head and base of the stud or button are securelylocked with each other;

To separate the headB from the base A, the head is pressed down to bringthe catches h h within the circular grooved, and then-.turned to bringsaid catches in line with the longitudinal grooves e 6, when the springcv will assist in forcing the head away from the base, and its postreadily passes out of the tube 1) of the base.

While" it is preferable to provide duplicate catches h, grooves e, andslots f, as described, the separable stud or button may only have one ofeach of these, if desired, without changing the generalprinciple oraction.

I am awarethat it is not new to use a base carrying a slotted tube, aspring in the tube, and a button having a side pin on its shank;

but

What I do claim as new and of my inven IOO vertically anddiametricallyopposite ways 6 e,

in combination with the button-shank g, having the cross-pin h,projecting 011 opposite sides, as shown and described.

- CHARLES HENRY NIGGEMANL NVitnesses: Y

A. BRUNK,

BERNARD MILLER.

